All petroleum, petrochemical, chemical, military and naval institute, oil resporsitory,
oil terminal construction companies, oil refineries, offshore platforms and others
Fire-Fighting engineering Company, airports, highway tunnel, five-star hotels,
hospitals, supermarkets, office buildings, national grain storage, thermal power plants,
shipyards, paper mills, subway stations, railway stations etc.
Steel plants residential region, industrial and mining enterprises,
house buildding materials supermarkets etc.